National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Helena Regional Airport (KHLN)

Lat: 46.60445°NLon: 111.9892°WElev: 3874.0ft.

Clear

61°F

16°C

Humidity 59%
Wind Speed NE 3 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 06 Aug 01:25 AM MDT
Extended Forecast for

Montana City MT

  • Overnight

    Overnight: Partly cloudy, with a low around 52. Light south southwest wind.

    Low: 52 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Increasing clouds, with a high near 86. Calm wind becoming northeast 5 to 7 mph in the afternoon.

    High: 86 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly before 4am. Mostly cloudy, with a low around 54. North wind 5 to 7 mph becoming light and variable after midnight.

    Low: 54 °F

    Chance
    T-storms

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm between noon and 3pm, then showers and thunderstorms likely after 3pm. Partly sunny, with a high near 78. Light and variable wind becoming west northwest 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%.

    High: 78 °F

    Mostly Sunny
    then T-storms
    Likely

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 3am, then a chance of showers. Mostly cloudy, with a low around 46. West wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 60%.

    Low: 46 °F

    T-storms
    Likely then
    Chance
    Showers

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 70. West wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 30%.

    High: 70 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 48. West southwest wind 6 to 15 mph, with gusts as high as 26 mph.

    Low: 48 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 75. Southwest wind 6 to 11 mph becoming west northwest in the afternoon. Winds could gust as high as 21 mph.

    High: 75 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 52. Light south southwest wind.
Wednesday
Increasing clouds, with a high near 86. Calm wind becoming northeast 5 to 7 mph in the afternoon.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before 4am. Mostly cloudy, with a low around 54. North wind 5 to 7 mph becoming light and variable after midnight.
Thursday
Showers likely and possibly a thunderstorm between noon and 3pm, then showers and thunderstorms likely after 3pm. Partly sunny, with a high near 78. Light and variable wind becoming west northwest 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%.
Thursday Night
Showers and thunderstorms likely before 3am, then a chance of showers. Mostly cloudy, with a low around 46. West wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 60%.
Friday
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 70. West wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 48. West southwest wind 6 to 15 mph, with gusts as high as 26 mph.
Saturday
Mostly sunny, with a high near 75. Southwest wind 6 to 11 mph becoming west northwest in the afternoon. Winds could gust as high as 21 mph.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
Sunny, with a high near 82.
Sunday Night
Mostly clear, with a low around 53.
Monday
Sunny, with a high near 86.
Monday Night
Mostly clear, with a low around 55.
Tuesday
Sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Montana City MT
 46.53°N 111.94°W (Elev. 4199 ft)
Last Update:
1:27 am MDT Aug 6, 2025
Forecast Valid:
1am MDT Aug 6, 2025-6pm MDT Aug 12, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation